He's the best light heavyweight in the world. He's the best pound-for-pound fighter in the world, too.
And he's just days away from getting another chance to justify both labels.
He's been at this for nearly a dozen years, has topped the marquee on 13 previous pay-per-views and hasn't lost a fight since the 12th month of Barack Obama's first term.
In other words, to suggest there have been many impactful moments would be an understatement.
We went back into the B/R mixed martial arts archives and pulled out the moments we determined to be the most outstanding, the most memorable and the most indicative of his consensus elite status.
Click through to see how your list compares.